Shrubland fire behaviour modelling with microplot data

Detalhes bibliográficos
Autor(a) principal: Fernandes, Paulo
Data de Publicação: 2000
Outros Autores: Catchpole, Wendy, Rego, Francisco
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10348/1866
Resumo: Fire behaviour modelling has been based primarily on experiments involving the measurement of a certain number of fires, where each variable is represented by an average value per fire. The main objective of this study was to examine if data collected from a microplot sampling design could be used to derive meaningful fire behaviour models. Three burns were conducted in low shrubland of Erica umbellata Loefl. and Chamaespartium tridentatum (L.)P. Gibbs in NE Portugal. Wind speed and aerial dead fuel moisture content varied from 5 to 27 km hr-1 and 14 to 21% respectively. Rate of spread and flame length ranged from 0.3 to 14.1 m min-1 and 0.2 to 3.1 m respectively. Rate of fire spread could be described effectively in terms of an empirical model with wind speed and fuel height as independent variables. The coefficients that describe the effects of wind speed and fuel height on fire propagation were consistent with published values for similar fuel types. Flame length was strongly related to Byram's fireline intensity. Microplot sampling is not free from methodological problems - which are discussed - but can be effectively used in field studies of fire behaviour.
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spelling Shrubland fire behaviour modelling with microplot dataFire behaviourShrublandRate of spreadFire behaviour modelling has been based primarily on experiments involving the measurement of a certain number of fires, where each variable is represented by an average value per fire. The main objective of this study was to examine if data collected from a microplot sampling design could be used to derive meaningful fire behaviour models. Three burns were conducted in low shrubland of Erica umbellata Loefl. and Chamaespartium tridentatum (L.)P. Gibbs in NE Portugal. Wind speed and aerial dead fuel moisture content varied from 5 to 27 km hr-1 and 14 to 21% respectively. Rate of spread and flame length ranged from 0.3 to 14.1 m min-1 and 0.2 to 3.1 m respectively. Rate of fire spread could be described effectively in terms of an empirical model with wind speed and fuel height as independent variables. The coefficients that describe the effects of wind speed and fuel height on fire propagation were consistent with published values for similar fuel types. Flame length was strongly related to Byram's fireline intensity. Microplot sampling is not free from methodological problems - which are discussed - but can be effectively used in field studies of fire behaviour.2012-05-28T15:08:27Z2000-01-01T00:00:00Z2000info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10348/1866engFernandes, PauloCatchpole, WendyRego, Franciscoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-02T12:52:39Zoai:repositorio.utad.pt:10348/1866Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:05:28.760584Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Shrubland fire behaviour modelling with microplot data
title Shrubland fire behaviour modelling with microplot data
spellingShingle Shrubland fire behaviour modelling with microplot data
Fernandes, Paulo
Fire behaviour
Shrubland
Rate of spread
title_short Shrubland fire behaviour modelling with microplot data
title_full Shrubland fire behaviour modelling with microplot data
title_fullStr Shrubland fire behaviour modelling with microplot data
title_full_unstemmed Shrubland fire behaviour modelling with microplot data
title_sort Shrubland fire behaviour modelling with microplot data
author Fernandes, Paulo
author_facet Fernandes, Paulo
Catchpole, Wendy
Rego, Francisco
author_role author
author2 Catchpole, Wendy
Rego, Francisco
author2_role author
author
dc.contributor.author.fl_str_mv Fernandes, Paulo
Catchpole, Wendy
Rego, Francisco
dc.subject.por.fl_str_mv Fire behaviour
Shrubland
Rate of spread
topic Fire behaviour
Shrubland
Rate of spread
description Fire behaviour modelling has been based primarily on experiments involving the measurement of a certain number of fires, where each variable is represented by an average value per fire. The main objective of this study was to examine if data collected from a microplot sampling design could be used to derive meaningful fire behaviour models. Three burns were conducted in low shrubland of Erica umbellata Loefl. and Chamaespartium tridentatum (L.)P. Gibbs in NE Portugal. Wind speed and aerial dead fuel moisture content varied from 5 to 27 km hr-1 and 14 to 21% respectively. Rate of spread and flame length ranged from 0.3 to 14.1 m min-1 and 0.2 to 3.1 m respectively. Rate of fire spread could be described effectively in terms of an empirical model with wind speed and fuel height as independent variables. The coefficients that describe the effects of wind speed and fuel height on fire propagation were consistent with published values for similar fuel types. Flame length was strongly related to Byram's fireline intensity. Microplot sampling is not free from methodological problems - which are discussed - but can be effectively used in field studies of fire behaviour.
publishDate 2000
dc.date.none.fl_str_mv 2000-01-01T00:00:00Z
2000
2012-05-28T15:08:27Z
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